NEC705.12(D)(3-4) 2014
"EQUIPMENT CONTAINING OVERCURRENT DEVICES IN CIRCUITS SUPPLYING POWER TO A BUSBAR OR CONDUCTOR SUPPLIED FROM MULTIPLE SOURCES SHALL BE MARKED TO INDICATE THE PRESENCE OF ALL SOURCES"

NEC690.64 2014
"POINTS OF CONNECTION SHALL BE IN ACCORDANCE WITH NEC705.12" Learn More

NEC690.35(F) 2014
"A PHOTOVOLTAIC POWER SOURCE SHALL BE LABELED AT EACH JUNCTION BOX, COMBINER BOX OR DISCONNECT, AND DEVICE WHERE ENERGIZED, UNGROUNDED CIRCUITS MAY BE EXPOSED DURING SERVICE." Learn More